Drawing a single contour line

Community matplotlib-users
1

Hi there,

I can draw a single contour line in MATLAB using

contour(z, [i i])

however,

contour(z, [i, i])

using matplotlib gives an error. In fact any plot that plots a single
line (i.e. contour(z, 1)) also gives an error as follows,

TypeError: unhashable type: 'numpy.ndarray'

How do I draw a single contour line using matplotlib?

regards,

Brendan

2

I've used:

  ax.contour(R, F, dR, levels=[0])

···

On Mon, Nov 2, 2009 at 3:19 PM, Brendan Arnold <brendanarnold@...287...> wrote:

Hi there,

I can draw a single contour line in MATLAB using

contour(z, [i i])

however,

contour(z, [i, i])

using matplotlib gives an error. In fact any plot that plots a single
line (i.e. contour(z, 1)) also gives an error as follows,

TypeError: unhashable type: 'numpy.ndarray'

How do I draw a single contour line using matplotlib?

3

From memory, you just need to make a length one list

contour(z, [i])

Pierre

···

Le 2 nov. 09 à 22:19, Brendan Arnold a écrit :

Hi there,

I can draw a single contour line in MATLAB using

contour(z, [i i])

however,

contour(z, [i, i])

using matplotlib gives an error. In fact any plot that plots a single
line (i.e. contour(z, 1)) also gives an error as follows,

TypeError: unhashable type: 'numpy.ndarray'

How do I draw a single contour line using matplotlib?

regards,

Brendan

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